Radeon HD 7990 vs Radeon Pro Vega 20

When comparing Radeon HD 7990 and Radeon Pro Vega 20, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 7990 and Radeon Pro Vega 20 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon Pro Vega 20 is a Laptop Graphics Card

Note: Radeon Pro Vega 20 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon Pro Vega 20 here:

Main Specs

  Radeon HD 7990 Radeon Pro Vega 20
Power consumption (TDP) 375 Watt 100 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin 1x 6-pin + 1x 8-pin
Memory type GDDR5 HBM2
Maximum RAM amount 3 GB 4 GB
Display Connectors 1x DVI, 4x mini-DisplayPort No outputs
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  • Radeon HD 7990 has 275% more power consumption, than Radeon Pro Vega 20.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon Pro Vega 20 has 1 GB more memory, than Radeon HD 7990.
  • Radeon HD 7990 is used in Desktops, and Radeon Pro Vega 20 - in Mobile workstations.
  • Radeon HD 7990 is build with GCN 1.0 architecture, and Radeon Pro Vega 20 - with Vega.
  • Core clock speed of Radeon HD 7990 is 135 MHz higher, than Radeon Pro Vega 20.
  • Radeon HD 7990 is manufactured by 28 nm process technology, and Radeon Pro Vega 20 - by 14 nm process technology.
  • Memory clock speed of Radeon HD 7990 is 4520 MHz higher, than Radeon Pro Vega 20.

Game benchmarks

high / 1080p 35−40 35−40
ultra / 1080p 21−24 21−24
QHD / 1440p 16−18 16−18
4K / 2160p 10−11 10−11
low / 720p 60−65 60−65
medium / 1080p 40−45 40−45
Radeon HD 7990 and Radeon Pro Vega 20 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Radeon HD 7990 Radeon Pro Vega 20
Architecture GCN 1.0 Vega
Code name Malta Vega Mobile
Type Desktop Mobile workstation
Release date 24 April 2013 15 November 2018
Pipelines 2048 1280
Core clock speed 950 MHz 815 MHz
Boost Clock 1000 MHz 1283 MHz
Transistor count 4,313 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 128.0 102.6
Floating-point performance 2x 4,096 gflops
Length 307 mm
Memory bus width 384 Bit 1024 Bit
Memory clock speed 6000 MHz 1480 MHz
Memory bandwidth 288.0 GB/s 189.4 GB/s
Shared memory -
DirectX 12 (11_1) 12 (12_1)
Shader Model 5.1 6.3
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131 1.2.131
Bitcoin / BTC (SHA256) 459 Mh/s
Laptop size large
Ethereum / ETH (DaggerHashimoto) 44 Mh/s
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